String.prototype.interpolate makes scheduling.ts hard to unit test

String.prototype.interpolate makes scheduling.ts hard to unit test: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). I was trying to add some unit tests around scheduling.ts (specifically textInterval , since it has the most branching logic) and hit a wall.